Breaking On/Off-coupling Loss Degeneracies via Bidirectional Nonlinear Optics

Bo-Han Wu, Mahmoud Jalali Mehrabad, Mengjie Yu +1

Accurate evaluation of nonlinear photonic integrated circuits requires separating input and output coupling efficiencies (i.e., $\hat{I}{\cdot }_1$ and $\hat{I}{\cdot }_2$), yet the conventional linear-tran…